Consolidated Statements of Earnings (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Reclassifications adjustment for realized gains on investment securities included in net earnings (loss), before income tax	$ 912	$ 239	$ 914	$ 244
Income tax expense from reclassification items	$ 319	$ 84	$ 320	$ 85